N5NH5 weld process gas meeting the requirements of ISO14175:N5, contains 5% Hydrogen in Nitrogen. Ideal for purging and backing of welds in stainless steel. Supplied in a 30 litre Integra® cylinder at 300 bar. Integra® cylinders are safer, smaller and lighter. The Integra® cylinder is designed to be used with a choice of Integra® flow optimisers (available separately) which ensure optimum weld results whilst reducing excessive gas usage too.